Graphene‐supported
            <scp>
              LaFeO
              <sub>3</sub>
            </scp>
            for photocatalytic hydrogen energy production

Orak, Ceren; Yuksel, Asli

doi:10.1002/er.6620

Cited by 18 publications

(8 citation statements)

References 53 publications

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“…determined La/Fe ratio as 1.18, it is found as 1.13 in this study so that it could be deduced that the results are in line with the literature [25,26] . TEM analysis of LFO and GLFO was previously performed and published elsewhere [27] . The results show that graphene formed a layer over LFO and incorporation of graphene does not cause any change in the perovskite structure of LFO.…”

Section: Resultssupporting

confidence: 88%

“…The expected peaks of La 3d 5/2 , O2p, and Fe(2p) components which are Fe2p 3/2 and Fe2p 1/2 were observed at certain binding energies and the results were inconsistent with the literature. Furthermore, the C−C component of graphene was also observed in the XPS diagram of GLFO [27] . The binding energies of La3d5, Fe2p, and O1s are given in Table 1.…”

Section: Resultsmentioning

confidence: 88%

“…[25,26] TEM analysis of LFO and GLFO was previously performed and published elsewhere. [27] The results show that graphene formed a layer over LFO and incorporation of graphene does not cause any change in the perovskite structure of LFO. Additionally, LFO and GLFO showed polycrystallinity.…”

Section: Catalyst Characterizationmentioning

confidence: 83%

“…The results show that graphene formed a layer over LFO and incorporation of graphene does not cause any change in the perovskite structure of LFO. Additionally, LFO and GLFO showed poly‐crystallinity [27] …”

Section: Resultsmentioning

confidence: 99%

“…The surface elemental composition of GLFO was investigated via XPS analysis and XPS diagrams of LFO and GLFO were previously published elsewhere [27] . The expected peaks of La 3d 5/2 , O2p, and Fe(2p) components which are Fe2p 3/2 and Fe2p 1/2 were observed at certain binding energies and the results were inconsistent with the literature.…”

Section: Resultsmentioning

confidence: 99%

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Photocatalytic Hydrogen Energy Evolution from Sugar Beet Wastewater

Orak

Yuksel

2021

ChemistrySelect

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Hydrogen is a clean, environmentally friendly, storable, and sustainable green energy source as well as a potential fuel. It could be produced from various biomass, wastewater, or other sources by different processes. In this study, hydrogen was evolved from sucrose model solution and real sugar beet wastewater by photocatalytic oxidation using a perovskite catalyst under solar light irradiation. In this context, firstly, the graphene supported LaFeO3 (GLFO) was synthesized and then, a characterization study shows that GLFO is successfully synthesized. To optimize the reaction parameters (pH, catalyst loading, and initial hydrogen peroxide concentration), an experimental matrix was created using the Box Behnken model. Whereas the highest hydrogen evolution from sucrose model solution was observed as 3520 μmol/gcat, the highest hydrogen evolution from sugar beet wastewater was obtained as 7035 μmol/gcat. The highest TOC removal (99.73 %) from sugar beet wastewater was also achieved at the same reaction conditions.

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Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 88%

Section: Catalyst Characterizationmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Photocatalytic Hydrogen Energy Evolution from Sugar Beet Wastewater

Orak

Yuksel

2021

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New insight into the structural and physical properties of AlH ₃

Pan

2022

Intl J of Energy Research

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Summary AlH3 hydride is a typical hydrogen storage material due to the high storage, low density and low temperature decomposition temperature, but the structural feature of AlH3 remains controversial. In addition, the optical properties of AlH3 are unclear. In this work, the first‐principles method is used to study the structural, optical and electronic properties of AlH3 hydride. Two possible AlH3 hydrides, viz. rhombohedral and cubic structures are considered. The stability of the rhombohedral AlH3 is demonstrated based on the analysis of phonon dispersion. Moreover, the band gap of rhombohedral and cubic AlH3 is 2.170 and 0.656 eV, respectively. Naturally, the semiconductor feature of AlH3 is related to the band separation of H‐s state and Al‐3p state. The dielectric functional diagram demonstrates the semiconductor properties of AlH3 hydride. Furthermore, it is found that the AlH3 shows the ultraviolet response.

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